Feasibility of quaternary alkyl ammonium-intercalated graphite as negative electrode materials in electrochemical capacitors

	Feasibility of quaternary alkyl ammonium-intercalated graphite as negative electrode materials in electrochemical capacitors
	Wang HY ; Yoshio M
刊名	journal of power sources
	2012
卷号	200 页码:108-112
关键词	SUPERCAPACITOR-TYPE ELECTROLYTE DOUBLE-LAYER CAPACITORS PROPYLENE CARBONATE AC/GRAPHITE LITHIUM SALTS PERFORMANCE CATION CELLS
ISSN号	0378-7753
通讯作者	wang hy
中文摘要	the electrochemical capacitor of graphite/activated carbon (ac) using quaternary alkyl ammonium-based organic electrolytes has been proposed. the charge storage mechanisms involve the adsorption of anions into pores of the ac positive electrode and the intercalation of ammonium cations into crystal lattice of the graphite negative electrode, respectively. the intercalation processes of ammonium cations have been investigated by in situ xrd measurements on graphite negative electrodes and the effect of cation size has been intensively addressed. among the four quaternary alkyl ammonium cations, the intercalation of the biggest cation tetrabutyl ammonium demonstrates the largest degree of crystal lattice expansion of graphite, but the best cycle-ability. by contrast, the insertion of second big cation tetraethyl ammonium into graphite gives the smallest expansion degree of graphite crystal lattice, but poor cycle performance of capacitor. a mechanism has been proposed to explain the above phenomenon. (c) 2011 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000298464000016
公开日期	2013-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48328]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang HY,Yoshio M. Feasibility of quaternary alkyl ammonium-intercalated graphite as negative electrode materials in electrochemical capacitors[J]. journal of power sources,2012,200:108-112.
APA	Wang HY,&Yoshio M.(2012).Feasibility of quaternary alkyl ammonium-intercalated graphite as negative electrode materials in electrochemical capacitors.journal of power sources,200,108-112.
MLA	Wang HY,et al."Feasibility of quaternary alkyl ammonium-intercalated graphite as negative electrode materials in electrochemical capacitors".journal of power sources 200(2012):108-112.